Great little pack, perfect for short day hikes. I took this to South Dakota Memorial Day weekend and used it while hiking as part of some car camping. It has plenty of space in and weighs next to nothing. When I saw the size of the pack and the placement of the reservoir pocket, I was a little skeptical that it would work, but it worked great with a 3 liter reservoir. This is the perfect pack for day hikes, looking forward to using this on many weekends to come.